YESIDO KM27 FT Screen 2.4G Wireless Video Intercom Doorbell

• Dual-mode wake-up, two-way intercom, low latency.
  
  
• External antenna design, long range, and anti-interference.
  
  
• Press the doorbell button to view real-time video on the screen.
  
  
• One-touch answering on the indoor unit allows for voice intercom with visitors at the door.
  
  
• Supports infrared night vision, allowing for clear visibility of visitors at the door day and night.
  
  
• One-touch photo/video recording for complete control of the door situation.
  
  
• The indoor unit features four ringtones with adjustable volume.
  
  
• Volume/brightness can be adjusted with shortcut keys, eliminating tedious setup.
  External industrial-grade antenna with a transmission range of 300 meters in open air and 50 meters indoors (through walls).